Merge pull request ripple-unmaintained#3 from clark800/entropy

Fail if secure entropy source is not available

lib/master_key.js

@@ -23,12 +23,12 @@ module.exports = function(options) {
       entropy = new Uint32Array(new Uint8Array(entropy).buffer);
       sjcl.random.addEntropy(entropy, 1024, 'crypto.randomBytes');
     } else {
-      for (var i = 0; i < 8; i++) {
-        sjcl.random.addEntropy(Math.random(), 32, 'Math.random()');
-      }
+      throw new Error('No secure source of entropy available');
     }
 
-    var randomBytes = sjcl.codec.bytes.fromBits(sjcl.random.randomWords(4));
+    var SJCL_PARANOIA_256_BITS = 6;
+    var words = sjcl.random.randomWords(4, SJCL_PARANOIA_256_BITS);
+    var randomBytes = sjcl.codec.bytes.fromBits(words);
 
     return MasterKey.fromBytes(randomBytes);
   };

package.json

@@ -1,25 +1,24 @@
 {
   "name": "ripple-wallet-generator",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "A node.js library for generating a Ripple wallet.",
   "main": "lib/wallet.js",
   "scripts": {
     "test": "mocha -R spec test/wallet_generator.js"
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/stevenzeiler/ripple-wallet.git"
+    "url": "https://github.com/ripple/ripple-wallet.git"
   },
   "keywords": [
     "ripple",
     "wallet",
     "crypto",
     "elliptic-curve"
   ],
-  "author": "stevenzeiler",
-  "license": "MIT",
+  "license": "ISC",
   "bugs": {
-    "url": "https://github.com/stevenzeiler/ripple-wallet/issues"
+    "url": "https://github.com/ripple/ripple-wallet/issues"
   },
   "devDependencies": {}
 }